Anti-pinch commodity shelf system
By using a pressure sensor and main control module in the lifting cabinet, the problem of limited anti-pinch range is solved, achieving all-round anti-pinch protection and ensuring the safety and stability of the lifting cabinet.
Patent Information
- Application Number
- CN202423024484.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing anti-pinch components have limited anti-pinch range in elevator cabinets and cannot effectively prevent injury to people and objects.
The anti-pinch system, composed of a pressure sensor and a main control module, detects pressure changes on the support plate through the pressure sensor, and determines whether an object or a person is being pinched by the timing module and the weighing module, and controls the lifting mechanism to stop or reverse to avoid injury.
It achieves comprehensive protection against pinching injuries to people and objects, operates stably and reliably, and can detect and prevent pinching situations in a timely manner, thus improving safety.
Smart Images
Figure CN223515953U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of smart home, especially a kind of anti-pinch shelf system. BACKGROUND
[0002] With the improvement of people's living standards, people will choose to use lifting cabinet in family, to increase storage space, improve the utilization of home space. In order to ensure the lifting safety of lifting cabinet, the lifting cabinet on the market will be set with anti-pinch component, to avoid lifting cabinet in the process of descending and pinch the goods or human body located below the lifting cabinet.
[0003] But the existing anti-pinch component often has limitation, and, function effect is single. For example, using infrared pair of shot switch as anti-pinch component, it only has the effect of anti-pinch to the range covered by infrared pair of shot, and the range of anti-pinch is limited.
[0004] Therefore, a kind of anti-pinch shelf system capable of preventing pinching human body in as comprehensive range as possible is needed. UTILITY MODEL CONTENT
[0005] In order to overcome the above-mentioned shortcomings of prior art, the purpose of the utility model is to provide a kind of anti-pinch shelf system capable of preventing pinching human body in as comprehensive range as possible.
[0006] The technical scheme adopted by the utility model to solve its technical problems is:
[0007] A kind of anti-pinch shelf system, including lifting mechanism, main control module, supporting structure;The supporting structure includes chassis, pressure sensor is equipped on the chassis, pressure sensor is connected with the supporting plate for placing goods;The lifting mechanism is drivingly connected with the chassis, and can drive the chassis to ascend and descend;The main control module includes weighing module and timing module, weighing module is signal connected with the pressure sensor, timing module is signal connected with the lifting mechanism.
[0008] Specifically, the anti-pinch process works as follows: a pressure sensor is arranged above the chassis, a support plate for placing an article is arranged above the pressure sensor, the support plate can support the article on its top or can hang the article below the support plate, which are all solutions that can conduct the pressure of the support plate and the article to the pressure sensor; after placing the article, the pressure sensor senses the pressure of the support plate and the article thereon. After the lifting mechanism starts, it will first accelerate and then drive the chassis to move at a constant speed. During the acceleration process, the value of the pressure sensor will increase or decrease due to acceleration. When the lifting mechanism moves at a constant speed, the reading of the pressure sensor will tend to be stable. Therefore, the timing module starts timing when the lifting mechanism starts moving, and after a certain period of time, that is, when the lifting mechanism moves at a constant speed, whether the pressure sensor value changes or not is used to determine whether the article or human body is pinched during the lifting process. When there is no pressure change, it means that the article is not pinched; when there is a pressure change, it means that something is blocked in the moving path of the lifting mechanism, and the main control module immediately sends a signal to control the lifting mechanism to stop moving or move in the opposite direction to avoid pinching the article or human body.
[0009] By adopting the above technical solution, as long as any part of the support plate is blocked, the pressure on the pressure sensor will change, so whether the support plate is pinched by the human body or not can be detected by the main control module and the stop / reverse movement can be triggered, which can fully ensure that the pinching of the human body is detected.
[0010] As an improved solution, a plurality of pressure sensors are arranged on the chassis, and the plurality of pressure sensors are arranged in a central symmetry / axial symmetry on the edge of the support plate.
[0011] Specifically, the top end of the pressure sensor is fixedly connected with the support plate, and the bottom end of the pressure sensor is fixedly connected with the chassis, and the pressure sensor can bear pressure and tension.
[0012] By adopting the above technical solution, the situation that the support plate is tilted on one side due to pressure can be prevented, and the overall system runs more stably.
[0013] As an improved solution, the lifting mechanism includes a transmission belt and a limiting guide rail, the chassis is slidingly connected to the limiting guide rail, and the chassis is connected to the transmission belt through a safety connecting piece; the safety connecting piece is signal-connected with the main control module and can be controlled by the main control module to unlock and lock between the transmission belt and the chassis.
[0014] Specifically, under normal circumstances, the chassis is limited by the limiting guide rail and does not move on the horizontal plane, but only moves in the vertical direction, and the driving force for the upward and downward movement of the chassis comes from the safety connecting piece connected with the transmission belt.
[0015] By adopting the technical scheme, when the clamping condition is detected, the main control module can stop / reverse the movement of the transmission belt, or control the safety connecting piece to forcibly unlock to disconnect the connection between the chassis and the transmission belt, stop the continuous pressure on the clamped object / human body, and ensure higher reliability.
[0016] As an improved scheme, the supporting plate is internally hollow to form an accommodating cavity, and the chassis is connected with the top of the accommodating cavity through the pressure sensor.
[0017] By adopting the technical scheme, the supporting plate can wrap the entire bottom plate, preventing the bottom plate from being exposed alone, thereby avoiding the problem that the bottom plate clamps the object when moving downward, and the pressure sensor cannot identify.
[0018] As an improved scheme, the pressure sensor is connected between the chassis and the inner side wall of the accommodating cavity.
[0019] By adopting the technical scheme, even if the supporting plate is impacted from both sides, the main control module can still be triggered to stop running to prevent accidents.
[0020] As an improved scheme, the pressure sensor is a bridge-type pressure sensor.
[0021] By adopting the technical scheme, the top and bottom connection points of the bridge-type pressure sensor are not at the same horizontal position, and a force arm is generated, which is more sensitive to small pressure changes.
[0022] As an improved scheme, the lifting mechanism includes a lifting motor in transmission connection with the transmission belt, and the main control module further includes a current detection module in signal connection with the lifting motor.
[0023] By adopting the technical scheme, the current detection module can be used to find the running current change of the lifting motor, so as to find that the bottom plate is blocked and the supporting plate clamps the object.
[0024] Compared with the prior art, the utility model has the advantages that:
[0025] As long as any part of the supporting plate is blocked, a pressure change on the pressure sensor will be generated, so no matter which part of the supporting plate clamps the human body, the main control module can find and trigger the stop / reverse movement, and the condition of clamping the human body can be detected. BRIEF DESCRIPTION OF DRAWINGS
[0026] Fig. 1 It is a schematic view of the connection relationship of various components of the anti-clamping object shelf system.
[0027] Fig. 2The utility model relates to a kind of main structure schematic diagram of anti-pinch goods shelf system.
[0028] Fig. 3 The utility model relates to a kind of main structure sectional view structure diagram of anti-pinch goods shelf system.
[0029] Wherein, 1: lifting mechanism;2: main control module;3: base frame;4: pressure sensor;5: support plate;6: lifting motor. DETAILED DESCRIPTION
[0030] The utility model is further described with the aid of the accompanying drawings and examples:
[0031] The utility model is further described with the aid of the accompanying drawings and examples:
[0032] It should be noted that when a component / part is referred to as "disposed on" another component / part, it can be directly disposed on the other component / part or there can be intervening components / parts. When a component / part is referred to as "connected / coupled" to another component / part, it can be directly connected / coupled to the other component / part or there can be intervening components / parts. As used herein, the term "connected / coupled" can include electrical and / or mechanical physical connections / couplings. As used herein, the term "comprises / comprising" indicates the presence of the stated features, steps or components / parts, but does not preclude the presence or addition of one or more other features, steps or components / parts. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an overly literal or overly formal sense unless expressly so defined herein.
[0034] The features described can be implemented in different ways and should not be construed as limited to the examples described herein. Rather, these described examples have been provided for purposes of illustration only and one skilled in the art will readily recognize from the disclosure herein, given the benefit of this disclosure, that numerous alternatives to the examples and implementations described herein can be and are contemplated.
[0035] As used herein, the term "and / or" includes any one and any combination of the associated items in the list.
[0036] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" as used herein, are specifically intended to be construed as open-ended terms i.e., the inclusion of unspecified items, quantities, operations, components, elements and / or combinations thereof, but not the exclusion of any other items, quantities, operations, components, elements and / or combinations thereof.
[0037] Variations in the shapes illustrated in the drawings can occur as a result of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the precise examples shown in the drawings but include variations in shapes made during manufacturing processes.
[0038] Features of the examples described herein can be combined with one another as would be apparent to one of ordinary skill in the art after understanding the disclosure provided herein. Furthermore, although examples described herein have a variety of configurations, other configurations are possible in which are apparent after understanding the disclosure provided herein.
[0039] Case 1:
[0040] As shown in the accompanying Figs. 1-3 A clamping-preventing storage shelf system includes a lifting mechanism 1, a master control module 2, and a supporting structure. The supporting structure includes a chassis 3, and the chassis 3 is provided with a pressure sensor 4, and the pressure sensor 4 is connected with a supporting plate 5 for placing articles. The lifting mechanism 1 is in driving connection with the chassis 3 and can drive the chassis 3 to ascend and descend. The master control module 2 includes a weight counting module and a timing module, the weight counting module is in signal connection with the pressure sensor 4, and the timing module is in signal connection with the lifting mechanism 1.
[0041] The anti-pinch process works as follows: a pressure sensor 4 is arranged above the chassis 3, and a support plate 5 for placing articles is arranged above the pressure sensor 4. After placing the articles, the pressure sensor 4 senses the pressure of the support plate 5 and the articles thereon. After the lifting mechanism 1 starts, it will first accelerate and then move at a constant speed to drive the chassis 3 to move up and down. During the acceleration process, the value of the pressure sensor 4 will increase or decrease due to acceleration. When the lifting mechanism 1 enters the constant speed stage, the reading of the pressure sensor 4 will tend to be stable. Therefore, the timing module starts timing when the lifting mechanism 1 starts to move. After a certain period of time, that is, when the lifting mechanism 1 enters the constant speed stage, whether the pressure sensor 4 value changes or not is used to determine whether the articles or human body are pinched during the lifting process. When there is no pressure change, it means that no object is pinched. When there is a pressure change, it means that something in the moving path of the lifting mechanism 1 is blocked, and the main control module 2 immediately sends a signal to control the lifting mechanism 1 to stop moving or move in the opposite direction to avoid pinching the object or human body.
[0042] As long as any part of the support plate 5 is blocked, the pressure on the pressure sensor 4 will change. Therefore, no matter which part of the support plate 5 pinches the human body, the main control module 2 can detect it and trigger the stop / reverse movement, which can fully ensure that the pinching of the human body is detected.
[0043] The chassis 3 is provided with a plurality of pressure sensors 4, and the plurality of pressure sensors 4 are arranged in a central symmetry / axial symmetry on the edge of the support plate 5.
[0044] The top end of the pressure sensor 4 is fixedly connected with the support plate 5, and the bottom end of the pressure sensor 4 is fixedly connected with the chassis 3. The pressure sensor 4 can bear pressure and tension.
[0045] The pressure sensor 4 can prevent the support plate 5 from being pressed and turned over on one end, and the system as a whole runs more stably.
[0046] The lifting mechanism 1 includes a transmission belt and a limiting guide rail. The chassis 3 is slidingly connected to the limiting guide rail, and the chassis 3 is connected to the transmission belt through a safety connecting piece. The safety connecting piece is signal-connected with the main control module 2 and can be controlled by the main control module 2 to unlock and lock between the transmission belt and the chassis 3.
[0047] Under normal circumstances, the chassis 3 is limited by the limiting guide rail and does not move on the horizontal plane, but only moves in the vertical direction. The driving force for the chassis 3 to move up and down comes from the safety connecting piece connected to the transmission belt.
[0048] When the pinching condition is detected, the main control module 2 can stop / reverse the movement of the transmission belt, or control the safety connecting piece to forcibly unlock to disconnect the connection between the chassis 3 and the transmission belt, so as to stop the continuous pressure on the pinched object / human body, and ensure higher reliability.
[0049] The supporting plate 5 is internally hollow to form a containing cavity, and the chassis 3 is connected to the top of the containing cavity through the pressure sensor 4.
[0050] The supporting plate 5 can wrap the entire bottom plate, preventing the bottom plate from being exposed alone, thereby avoiding the problem that the pressure sensor 4 cannot be identified when the bottom plate is moved downward and clamps an object.
[0051] The pressure sensor 4 is connected between the chassis 3 and the inner side wall of the containing cavity.
[0052] The supporting plate 5 can trigger the reaction of the main control module 2 even if it is subjected to impact from both sides, and stop running to prevent accidents.
[0053] The pressure sensor 4 is a bridge type pressure sensor 4.
[0054] The top and bottom connection points of the bridge type pressure sensor 4 are not at the same horizontal position, which will generate a force arm and be more sensitive to small pressure changes.
[0055] The lifting mechanism 1 includes a lifting motor 6 connected with a transmission belt, and the main control module 2 further includes a current detection module, which is signal connected with the lifting motor 6.
[0056] The current detection module can be used to find the running current change of the lifting motor 6, so as to find the situation that the bottom plate is blocked and the supporting plate 5 clamps an object.
[0057] In summary, after reading the utility model document, the ordinary skilled in the art can make other various corresponding transformation schemes according to the technical scheme and technical concept of the utility model without creative mental labor, and different application scenarios all belong to the protection range of the utility model.
Claims
1. An anti-pinch merchandise display system, characterized by, Including lifting mechanism (1), master module (2), support structure, the support structure includes chassis (3), the chassis (3) is equipped with pressure sensor (4), the pressure sensor (4) is connected with the support plate (5) for placing articles on; The lifting mechanism (1) is drivingly connected with the chassis (3), and can drive the chassis (3) to rise and fall;The master module (2) includes a weighing module and a timing module, the weighing module is signal connected with the pressure sensor (4), and the timing module is signal connected with the lifting mechanism (1).
2. The anti-pinch shelving system of claim 1, wherein, The chassis (3) is equipped with a plurality of pressure sensors (4), and the plurality of pressure sensors (4) are symmetrically distributed on the edge of the support plate (5).
3. The anti-pinch shelving system of claim 1, wherein, The lifting mechanism (1) includes a transmission belt and a limiting guide rail, the chassis (3) is slidingly connected on the limiting guide rail, and the chassis (3) is connected with the transmission belt through a safety connecting piece;The safety connecting piece is signal connected with the master module (2), and the unlocking and locking between the transmission belt and the chassis (3) can be controlled by the master module (2).
4. The anti-pinch shelving system of claim 1, wherein, The support plate (5) is hollow inside to form an accommodating cavity, and the chassis (3) is connected with the top of the accommodating cavity through the pressure sensor (4).
5. The anti-pinch shelving system of claim 4, wherein, The pressure sensor (4) is connected between the chassis (3) and the inner side wall of the accommodating cavity.
6. The anti-pinch shelving system of claim 1, wherein, The pressure sensor (4) is a bridge type pressure sensor (4).
7. The anti-pinch shelving system of claim 3, wherein, The lifting mechanism (1) includes a lifting motor (6) drivingly connected with a transmission belt, and the master module (2) further includes a current detection module, and the current detection module is signal connected with the lifting motor (6).